Awning-frame



UNITED STATES PATENT OFFICE.

EGBERT C. COOK, OF CHICAGO, ILLINOIS.

AWNING- FRAME.

SPEGIFIGATION forming part of Letters Patent No. 233,987, dated November2, 1880.

Application filed July 13, 1880. (No model.)

To all whom it may concern.-

Be it known that I, EGBERT 0. 000K, of Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Awning-Frames, of which the following, in connection with theaccompanyin g drawings, is a specification.

In the drawings, Figure 1 is a perspective of an awning-frame embodyingmy invention. Fig. 2 is a vertical section thereof, and Fig. 3 is adetail of a portion of the same.

Like letters of reference indicate like parts.

In an application by me heretofore made for Letters Patent of the UnitedStates of America for improvement in awning-frames I set forth that thatinvention had for its object, among other things, the prevention of theswinging and rattling of the folding part of the frame when exposed towind. The means I employed for that purpose consisted of pawls pivotedto the wall-plates and engaging serrations on the ontWardly-projectingarms of the frame, the pawls being controlled by means of cords.

The purpose of my present invention is to avoid the use of serrationsand cords; and to that end it consists in making the pawls yielding andin employing them substantially in the manner hereinafter described.

In the drawings, A represents the folding part of the frame, and B B arethe wall-plates. C C are pawls pivoted at their inner ends either to thewall-plates or to the wall, as may be deemed bestpreferably, in myopinion, to the wall-plates, as shown. The outer or forward ends of thepawls rest upon the forwardly-extending arms of the frame, and are madeyielding, and yet are so arranged as to exert a downward pressure on thesaid arms. To make the pawls so yielding I arrange spiral springs D D onthe pins or studs 0. a, on which the pawls are freely mounted, one endof each of the said springsbeing fixed or attached to the said studs orto other fixed parts, and the other ends being attached to the saidpawls, as indicated in Fig. 3, the coil of the spring being such as topress the pawls down firmly at their outer ends upon the lateral arms ofthe frame.

a horizontal position.

It will be perceived from the foregoing description and from referenceto the drawings that the frame of the awning will be prevented, by meansof the pressure exerted by the springs and pawls, from being moved orshaken sufficiently by the wind to be rattled thereby.

It will also be perceived that the frame may be raised in the usualmanner by means of cords b 1).

Furthermore, it will be observed, by referring to Fig. 2, that if thecords b b should be slackened for the purpose of lowering the frame thesprings and pawls will throw it into The action of the pawls isautomatic, and neither cords nor serrations are required in connectiontherewith for reudering them operative for the purpose for which theyare intended.

To cause the pawls to ride easily on the frame I deem it preferable toprovide their free ends with anti-friction rollers or wheels 0 c, and toplace on the outwardly-extended arms of the frame the rails c 0, adaptedand arranged to receive the wheels 0 0.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

l. The antomatically-yielding reciprocating pawls C C, pivoted at theirinner or rear ends to fixed bearings, in combination with the lateral orforwardly-extending arms or bars of the folding awning-frame A,substantially as and for the purposes specified.

2. The combination of the yielding pawls C C, having anti-frictionwheels 0 c on their free ends, with the folding awning-frame A, havingthereon the rails c c, to receive the said wheels, substantially as andfor the purposes specified.

3. The combination of the pivoted pawls C C, springs D D, Wheels 0 c,folding awningframe A, and rails c c, all arranged for operationtogether substantiallylas and for the purposes specified.

EGBERT C. COOK.

Witnesses:

F. F. WARNER, WM. M. LE MOYNE.

